Antibiotics in Infancy and Obesity in Adults "Antibiotics in infancy may cause obesity in adults," claims a recent headline. A study in mice randomly assigned infant mice to either be given antibiotics or not, and the mice given antibiotics were more likely to be obese as adults. A separate study in humans found that children who had been given antibiotics before they were a year old (for example, for an ear infection) were more likely to be obese as adults. (Researchers believe the effect may be due to changes in the gut microbiome.) Based on these studies, is the headline an appropriate conclusion to make:

(a) For mice?

(b) For humans?